This situation, usually is a good sign if you are interested in the guy. By him asking your age it shows that he is curious about you and interested in you. When a guy asks for your age, a lot of the time the reason is to see if you are around the same age as him. He wants to know this to see whether you are off limits or not. It is his way of reassuring himself that he may have a chance of getting you.
By complimenting you when saying your cute, it shows that he is attracted towards you. His purpose in telling you this is to try and make you like him, and to simply tell you his truthful thoughts about you.
By complimenting you when saying your cute, it shows that he is attracted towards you. His purpose in telling you this is to try and make you like him, and to simply tell you his truthful thoughts about you.